Real-mode programs freely execute CLI and STI to control interrupts, PUSHF and POPF to manipulate flags, INT n for DOS and BIOS calls, and IN/OUT for hardware I/O. In normal protected mode, these instructions are privilege-checked -- they execute normally if the caller has sufficient privilege, and fault otherwise. The 386 can't simply let V86 tasks execute them freely -- a DOS program disabling interrupts would bring down the whole system -- but trapping on every INT 21h call would make V86 impractically slow.
Раскрыты подробности о договорных матчах в российском футболе18:01。业内人士推荐WPS官方版本下载作为进阶阅读
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2013年,万达创始人王健林以3.2亿英镑收购英国圣汐国际91.8%股份,将这一全球顶级豪华游艇品牌纳入版图,试图补齐高端消费产业链。
Ранее о ракетной опасности сообщили в Оренбургской, Самарской и Свердловской областях, а также в Чувашии, Татарстане, Башкирии и Удмуртии.